ALBEE TOWNSHIP, MI — Deputies called to an address in rural Saginaw County found a man deceased.

And although his cause of death is not being made public, detectives know it was not due to natural causes, Saginaw County Sheriff William Federspiel said.

Police were called on the evening of Wednesday, April 30, to a home at 1491 West Fry and found Scott A. Humphrey dead inside.

How the 52-year-old Humphrey died was confirmed during an autopsy performed by Saginaw County Medical Examiner Kanu Virani Friday, May 2, said Federspiel on Friday.

Police are holding back some information to avoid compromising the investigation, he said.

There was no sign of forced entry and no indications of a robbery at the home, he said. Detectives don't know how long Humphrey was dead before he was found, Federspiel said.

Nicole Bowman, a friend of Humphrey's, told The Saginaw News she went to the home Wednesday, April 30, after not hearing from him for more than a week. She said lights and a television were left on and the front door was open, which was out of place because Humphrey and their friends use the back door.

"I had a gut feeling something was wrong," she said, adding, "it was such a vacant feeling."

Humphrey was owner and operator of S&H Carpet Cleaners and enjoyed riding his motorcycle, Bowman said. His Facebook page states he attended Delta College and was a member of the 1980 class of Swan Valley High School.

Detectives know Humphrey lived at the address and they believe he was killed inside the home. They believe he lived there alone, Federspiel said.

Federspiel said his detectives are working around the clock on the investigation and interviewing anyone they can find who knows the victim or might know anything about the case. Detectives are also looking at electronic transmissions and "anything else we can find," he said.

Lt. Randy Pfau added that the case has risen to the department's top priority and all of the department's resources are being utilized in the investigation. The sheriff's department is working closely with the Michigan State Police crime lab and police departments in other jurisdictions near Albee Township.

Federspiel said detectives currently have "very little to go on" and are looking for help from the public. He said they don't have information about anyone being upset with Humphrey.

Anyone with information about the case or who might know why someone who would want Humphrey dead should call Detective Sgt. David Kerns at 989-790-5446 or Crime Stoppers at 1-800-422-JAIL.

Federspiel encourages people to report anything that could be related, even if they think it might not be important to the case.

Asked about the people at the house when police arrived, Federspiel responded, "At this point, everyone is a suspect until we can rule them out as a suspect."

To anyone involved in Humphrey's death, Federspiel said, "Come forward, turn yourself in, it will go a lot easier for you if you do that."

Federspiel said he can't say the last time someone was killed in Albee Township.

"I'm very disheartened any time there is a killing in Saginaw County," Federspiel said, noting it is not common for this part of the county, calling it a quiet community. "But crime knows no boundaries."

In the wake of the unsolved killing, Federspiel advised people in the area to be vigilant, to lock their doors and look out for their neighbors.